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On the Cover

November-December 2009
Volume 97, Number 6

Found in caves and wooded canyons of the Sierra Nevada in California, ...


FEATURE ARTICLES

Spitzer’s Cold Look at Space

Michael Werner

The infrared spectrum reveals much about planets, stars and galaxies


Harvestmen *

William Shear

Opiliones, including daddy-long-legs, are as exotic as they are familiar


The Other Climate Threat: Transportation *

Andreas Schäfer, Henry D. Jacoby, John B. Heywood, Ian A. Waitz

Increased global travel is inevitable, but growth in CO2 output is not


Going with the Floe? *

Stephanie Pfirman, Bruno Tremblay, Charles Fowler

Did luck or skill favor the Nansen and Shackleton polar expeditions?


* access restricted to members and subscribers


SCIENTISTS’ BOOKSHELF

Despicable, Yes, but Not Inexplicable

Craig Stanford

A review of Sexual Coercion in Primates and Humans: An Evolutionary Perspective on Male Aggression Against Females, edited by Martin N. Muller and Richard W. Wrangham. “Sexually coercive males are not just attempting to have sex with particular females,” says Stanford; “they’re trying to control female sexuality in general”

See all book reviews for this issue


DEPARTMENTS

COMPUTING SCIENCE

Hip-Hop Physics

Electrons dance to a quantum beat in the Hubbard model of solid-state physics

Brian Hayes

ENGINEERING

The Minneapolis Bridge*

A replacement for a fallen structure rises to the occasion in less than a year

Henry Petroski

MARGINALIA

Abstract Science?

Abstraction, not just mathematics, has its place in science as it does in art

Roald Hoffmann

SIGHTINGS

Envisioning Cosmic Collisions

Computer simulations of merging galaxies

Catherine Clabby

SCIENCE OBSERVER

Don't Fence Me Out

To protect wildlife, barriers to information flow between science and policy will have to be made more permeable

Anna Lena Phillips

Multitasking to Distraction

Users of many concurrent media streams actually are less able to switch between tasks

Fenella Saunders

In the News

 

LETTERS TO THE EDITORS

Be Real About Biofuels

Our Flexible Age

Statistical or Actual Significance?

 

SIGMA XI TODAY (PDF)

2009 Year-End Index


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